When correlating logs from multiple services, which piece of information is most useful for linking related entries?

A common correlation ID or request ID

The log level (e.g., INFO, ERROR)

A system administrator sees the following log entries: - 10:00:00 ERROR: Disk space low on /var/log - 10:00:01 WARN: Application response time increased - 10:00:02 ERROR: Unable to write to log file - 10:00:03 CRITICAL: Application stopped responding What is the most likely sequence of events?

The response time increase caused the disk space issue.

Disk space low caused the log write failure, which led to the application stopping.

Application stopped responding first, causing the disk space issue.

The log write failure caused the disk space to become low.

A system has the following log entries: - 10:00:00 INFO: User 'alice' viewed product page - 10:00:01 WARN: Cache miss for product 123 - 10:00:02 ERROR: Payment gateway timeout - 10:00:03 INFO: User 'alice' logged out Which event has the highest severity and impact?

User 'alice' viewed product page

Given the following log line: `2024-05-01T10:15:30Z ERROR auth-service User 'alice' failed login attempt from IP 10.0.0.5`. Which fields would a log parser typically extract?

The IP address and the user only, ignoring the rest

Only the timestamp and the error message

The entire log line as a single string without any field separation

Timestamp, severity, service, user, and IP address

CiscoCertified DevNet Professional

Domain 1Objective 7

Diagnose Problems with an Application Given Logs Related to an Event 350-901 Practice Questions (Page 1)

Part of the 1.0 Software Development and Design domain, which accounts for 20% of the 350-901 exam. Cisco does not publish an official question count, but from its 120-minute exam (~50–80 total, ~10–16 in this domain), expect 1–1 from this objective — we provide 11 practice questions to prepare you well beyond it. (estimate)

11questions here

3free pages

5concepts

20%of the exam

Questions 1–5

1foundation · easy
When correlating logs from multiple services, which piece of information is most useful for linking related entries?
Select an answer first
2foundation · easy
A developer is troubleshooting a failure that spans multiple services. Which technique is used to trace the sequence of events leading to the problem by examining logs from different sources?
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3application · medium
A system administrator sees the following log entries: - 10:00:00 ERROR: Disk space low on /var/log - 10:00:01 WARN: Application response time increased - 10:00:02 ERROR: Unable to write to log file - 10:00:03 CRITICAL: Application stopped responding What is the most likely sequence of events?
Select an answer first
4application · medium
A system has the following log entries: - 10:00:00 INFO: User 'alice' viewed product page - 10:00:01 WARN: Cache miss for product 123 - 10:00:02 ERROR: Payment gateway timeout - 10:00:03 INFO: User 'alice' logged out Which event has the highest severity and impact?
Select an answer first
5foundation · easy
Given the following log line: `2024-05-01T10:15:30Z ERROR auth-service User 'alice' failed login attempt from IP 10.0.0.5`. Which fields would a log parser typically extract?
Select an answer first

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